#include<stdio.h>
int main()
{
	double a,c;
	char b;
	scanf("%lf%c%lf",&a,&b,&c);
	if (b == '+') {
		printf("=%.2lf\n",a+c);
	}
	else if (b == '-') {
		printf("=%.2lf\n",a-c);
	}
	else if (b == '*') {
		printf("=%.2lf\n",a*c);
	}
	else if (b == '/') {
		printf("=%.2lf\n",a/c);
	}
}
